1 Cracks, Microcracks and Fracture in Polymer Structures: Formation, Detection, Autonomic Repair Firas Awaja a* , Shengnan Zhang b , Manoj Tripathi a , Anton Nikiforov d , Nicola Pugno a,d,e a Center for Materials and Microsystems, PAM-SE, Fondazione Bruno Kessler, Trento, Italy b School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW, 2006, Australia c Department of Applied Physics, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000 Ghent, Belgium d Laboratory of Bioinspired and Graphene Nanomechanics, University of Trento, Italy e School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK *Author for Correspondence, [email protected]. Tel: +39 0461 314645 Abstract: Polymers and polymer composites are susceptible to premature failure due to the formation of cracks and microcracks during their service time. Evolution of cracks and microcracks could induce catastrophic material failure. Therefore, the detection/diagnostics and effective repair of cracks and microcracks are vital for ensuring the performance reliability, cost effectiveness and safety for polymer structures. Cracks and microcracks, however, are difficult to detect and often repair processes are complex. Biologically inspired self-healing polymer systems with inherent ability to repair damage have the potential to autonomically repair cracks and microcracks. This article is a review on the latest developments on the topics of cracks and microcracks initiation and propagation in polymer structures and it discusses the current techniques for detection and
Cracks, Microcracks and Fracture in Polymer Structures: Formation, Detection, Autonomic Repair
May 17, 2023
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